447
FNUS71 KBOX 041515
FWSBOX
SPOT FORECAST FOR SPENCER FAIR EVENT...MASS. EMERGENCY MANAGEMENT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1115 AM EDT FRI SEP 4 2026
FORECAST IS BASED ON FORECAST START TIME OF 1600 EDT ON SEPTEMBER 05.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL
WEATHER SERVICE.
DISCUSSION
SATURDAY WILL FEATURE MOSTLY SUNNY SKIES TO START, WITH A CHANCE
OF A SHOWER OR THUNDERSTORM IN THE AFTERNOON AND ESPECIALLY THE EVENING
HOURS. HIGH TEMPERATURES WILL BE IN THE MID 70S.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS LATE IN
THE AFTERNOON AND EVENING.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF PCPN......30 PERCENT.
CHANCE OF RAIN......51 PERCENT.
CHANCE OF THUNDER...14 PERCENT.
BEGIN/END OF PCPN...
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........68 PERCENT.
MAX APPARENT TEMP...71.
MAX APPARENT TEMP...71.
MAX APPARENT TEMP...71.
EYE LEVEL WINDS.....NORTHEAST WINDS AROUND 4 MPH.
SURFACE WINDS (MPH).NORTHEAST WINDS AROUND 7 MPH.
WIND (20 FT)........NORTHEAST WINDS AROUND 7 MPH.
100 FT WIND.........
WAVE HEIGHT.........LESS THAN 1 FOOT.
RAINFALL AMOUNT.....0.03 INCHES.
PCPN AMOUNT.........0.03 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
CEILING (KFT).......3.2.
VISIBILITY..........8.
WATER TEMPERATURE...
MIXING HEIGHT.......3300 FT AGL.
TRANSPORT WINDS.....NORTH 10 TO 12 MPH.
SMOKE DISPERSAL.....FAIR (17000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (32700 KNOT-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................1 EARLY IN THE MORNING INCREASING TO 46 IN THE
AFTERNOON.
TIME (EDT) 4PM 5PM
SKY (%).........57 62
WEATHER COV.....SCH CHC
WEATHER TYPE....RW RW
TSTM COV........
CHC OF PCPN (%).20 30
CHC OF RAIN (%).30 50
CHC OF THDR (%).10 10
TEMP............71 69
RH..............73 78
HEAT INDEX (F)..71 69
WIND CHILL (F)..71 69
APARNT TMP (F)..71 69
20 FT WIND DIR..NE NE
20 FT WIND SPD..7 7
20 FT WIND GUST.13 13
EYE LVL WND DIR.NE NE
EYE LVL WND SPD.4 4
EYE LVL WND GST.8 8
SURFACE WND DIR.NE NE
SURFACE WND SPD.7 7
SURFACE WND GST.13 13
MIX HGT (KFT)...3.3 1.9
TRANSP WIND DIR.N NE
TRANSP WIND SPD.12 10
100 FT WIND.....
LVORI...........3 4
ADI.............46 1
VRATE KT-FT/1K..33 17
VENTRATE CAT....PR PR
WAVE HEIGHT (FT)0 0
CEILING (KFT)...3.2 3.2
VISIBILITY (SM).8 8
WATER TEMP......
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS EARLY IN
THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS
EARLY. CHANCE OF RAIN SHOWERS IN THE LATE
EVENING AND EARLY MORNING.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF PCPN......40 PERCENT.
CHANCE OF RAIN......68 PERCENT.
CHANCE OF THUNDER...14 PERCENT.
BEGIN/END OF PCPN...
MIN TEMPERATURE.....AROUND 51.
MAX HUMIDITY........100 PERCENT.
MAX APPARENT TEMP...66.
MAX APPARENT TEMP...66.
MAX APPARENT TEMP...66.
EYE LEVEL WINDS.....NORTHEAST WINDS UP TO 4 MPH IN THE EVENING
BECOMING LIGHT, THEN BECOMING NORTH AROUND 3
MPH EARLY IN THE MORNING.
SURFACE WINDS (MPH).NORTHEAST WINDS 5 TO 7 MPH IN THE EVENING
BECOMING LIGHT, THEN BECOMING NORTH AROUND 5
MPH EARLY IN THE MORNING.
WIND (20 FT)........NORTHEAST WINDS 5 TO 7 MPH IN THE EVENING
BECOMING LIGHT, THEN BECOMING NORTH AROUND 5
MPH EARLY IN THE MORNING.
100 FT WIND.........
WAVE HEIGHT.........LESS THAN 1 FOOT.
RAINFALL AMOUNT.....0.06 INCHES.
PCPN AMOUNT.........0.06 INCHES.
SNOWFALL AMOUNT.....0.0 INCHES.
CEILING (KFT).......2.6 DECREASING TO 2.3 EARLY, THEN INCREASING TO
3.0 AFTER MIDNIGHT INCREASING TO 4.1 EARLY IN
THE MORNING.
VISIBILITY..........8.
WATER TEMPERATURE...
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHEAST 8 TO 12 MPH.
SMOKE DISPERSAL.....POOR (2200 KNOT-FT).
LVORI...............8.
ADI.................1 TO 8.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........60 56 61 62 65 68 67 66 65 64 63 62
WEATHER COV.....CHC CHC SCH CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW RW RW
TSTM COV........
CHC OF PCPN (%).30 30 20 30 30 40 30 30 10 10 10 10
CHC OF RAIN (%).20 30 70 40 30 20 20 20 20 30 30 30
CHC OF THDR (%).10 10 10 10 10 0 0 0 0 0 0 0
TEMP............66 64 62 61 60 59 58 57 56 54 53 52
RH..............90 93 100 100 100 100 100 100 100 100 100 100
HEAT INDEX (F)..66 64 62 61 60 59 58 57 56 54 53 52
WIND CHILL (F)..66 64 62 61 60 59 58 57 56 54 53 52
APARNT TMP (F)..66 64 62 61 60 59 58 57 56 54 53 52
20 FT WIND DIR..NE E E NE NE NE NE NE N N N N
20 FT WIND SPD..7 6 6 5 3 3 2 2 2 2 3 5
20 FT WIND GUST.13 12 12 9 8 7 7 7 7 7 8 9
EYE LVL WND DIR.NE E E NE NE NE NE NE N N N N
EYE LVL WND SPD.4 4 4 3 2 2 1 1 1 1 2 3
EYE LVL WND GST.8 7 7 5 5 4 4 4 4 4 5 5
SURFACE WND DIR.NE E E NE NE NE NE NE N N N N
SURFACE WND SPD.7 6 6 5 3 3 2 2 2 2 3 5
SURFACE WND GST.13 12 12 9 8 7 7 7 7 7 8 9
MIX HGT (KFT)...1.2 1.2 0.7 0.8 0.7 0.6 0.6 0.5 0.5 0.4 0.3 0.4
TRANSP WIND DIR.N NE E E NE NE NE NE NE NE NE NE
TRANSP WIND SPD.10 9 12 12 10 8 8 8 8 8 8 8
100 FT WIND.....
LVORI...........7 6 8 8 9 9 9 9 9 9 9 9
ADI.............1 6 8 8 5 4 4 4 4 4 4 5
VRATE KT-FT/1K..11 9 7 8 6 4 4 3 3 3 2 3
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
WAVE HEIGHT (FT)0 0 0 0 0 0 0 0 0 0 0 0
CEILING (KFT)...2.9 2.6 2.3 2.4 2.6 2.7 3.0 3.2 3.5 3.8 4.1 4.4
VISIBILITY (SM).8 9 9 9 9 9 9 9 9 9 9 9
WATER TEMP......
FORECASTER...BRW
REQUESTED BY...ALEX RIDDELL
TYPE OF REQUEST...OTHER
.TAG 2621201.0/BOX
.DELDT 09/04/26
.FORMATTERVERSION 2.0.0
.EMAIL ALEXANDER.RIDDELL@MASS.GOV
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